Name: ecobee3 Smarter
Brand: Ecobee
SKU: B00ZIRV39M
Price: 249.99 USD
Availability: InStock
Rating: 4.0 (2735 reviews)

Expert Review Analysis

The Ecobee3 Smarter Wi‑Fi Thermostat (2nd Generation) is a programmable smart thermostat with a 3.5‑inch color touchscreen, built‑in temperature, humidity, motion and proximity sensors, and Wi‑Fi connectivity for remote control via iOS/Android apps and voice assistants. It offers broad HVAC compatibility (~95% of 24V systems) and includes a Power Extender Kit for installations without a C‑wire.

✓ Best for: Homeowners with multi‑room or large homes who need sensor‑based zoning to eliminate hot/cold spots, those with 24V HVAC systems (especially heat pumps or dual‑fuel), and Apple ecosystem users seeking app and voice control via Siri/HomeKit.✗ Not ideal for: Residents in homes lacking a C‑wire who prefer a plug‑and‑play solution without additional adapters, users who require the latest Wi‑Fi 6/ax connectivity, or those who need a slimmer thermostat for tight installation spaces.

Pros

✓Broad HVAC compatibility covering ~95% of 24V systems including conventional, heat pump, dual fuel, humidifier, dehumidifier, ventilator, HRV/ERV
✓Built-in temperature, humidity, motion and proximity sensors enable precise zone control and smart recovery based on weather data

Price History

Current

$249.99

Average

$230.29

Lowest

$199.00

Highest

$279.97

Price trend (90d):+13.9%

Best Seller Rank History

Now#520Best#171Worst#35,013 +68

Lower = better sales rank

Specifications

Battery

Battery Type1 Lithium Metal (included)

Connectivity

WiFi Standard802.11 b/g/n @ 2.4 GHz

Bluetooth VersionBLE 5.4

Sub-GHz Frequency915 MHz MHz

Design

Height0.93 in (23.6 mm) mm

Width3.95 in (100.3 mm) mm

Depth3.95 in (100.3 mm) mm

Weight1.35 lb (612 g) g

ColorBlack front, white sides/back

Display

Screen Size3.5 in mm

Resolution320x480 pixels

Features

HVAC Compatibility~95% of 24V systems (conventional 2H/2C, heat pump 4H/2C, gas/oil/electric/dual fuel, humidifier/dehumidifier/ventilator/HRV/ERV)

Remote Sensor CompatibilitySupports 2nd Gen remote sensors (temperature, motion)

General

Warranty3 years

Power

Power Voltage24 VAC V

Power Consumption<3.5 VA

Sensors

Sensor TypesTemperature, humidity, motion/proximity

Security

Wi‑Fi SecurityWPA2/WPA3 with 168‑bit SSL encryption

Operating Temperature

Operating Range14–122 °F (-10–50 °C)

Dimensions & Weight

Height0.93 inches

Width3.95 inches

Depth3.95 inches

Weight1.35 pounds

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ecobee3 Smarter

Expert Review Analysis

Price History

Best Seller Rank History

Specifications

Battery

Connectivity

Design

Display

Features

General

Power

Sensors

Security

Operating Temperature

Dimensions & Weight

Research Sources

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